APA (7th ed.) Citation

Ullman, J. D., & Widom, J. (1997). A first course in database systems ([Nachdr.].). Prentice Hall.

Chicago Style (17th ed.) Citation

Ullman, Jeffrey D., and Jennifer Widom. A First Course in Database Systems. [Nachdr.]. Upper Saddle River, NJ: Prentice Hall, 1997.

MLA (9th ed.) Citation

Ullman, Jeffrey D., and Jennifer Widom. A First Course in Database Systems. [Nachdr.]. Prentice Hall, 1997.